# Service bulletin KA\-01128 V2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10191703
- Published by NHTSA: 2021\-05\-05
- Manufacturer's number: KA\-01128 V2
- Manufacturer's date: 2021\-04\-23
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN

## NHTSA's summary

Transmission Control Unit \(TCU\) does not reprogram through MDS

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191703-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191703-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2018 to 2021 MCLAREN 720S
- 2020 to 2021 MCLAREN 765LT
- 2014 to 2015 MCLAREN P1

## Other bulletins for the same vehicles and component

- [KA\-01940 V2](/bulletins/11037823.md), 2026-10-02, Other: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; ENGINE. P1 GEN 2 Battery Pre\-installation Checks
- [KA\-01986](/bulletins/11028621.md), 2026-02-06, Other: POWER TRAIN; ENGINE. V8 Coolant Hose Drift
- [KA\-01783 v2](/bulletins/11026430.md), 2025-12-05, Other: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER. McLaren DMTL Test Diagnosis
- [KA\-01940](/bulletins/11023918.md), 2025-10-06, Other: ELECTRICAL SYSTEM. P1 GEN 2 Battery Pre\-installation Checks
- [KA\-01922](/bulletins/11022839.md), 2025-09-05, Other: STRUCTURE:BODY; ELECTRICAL SYSTEM. P14 Spider Door Module Water Ingress
- [KA\-01852](/bulletins/11014647.md), 2025-03-03, Other: ELECTRICAL SYSTEM. McLaren P1 Hybrid Warning \- Charge Cable Connector Terminals Not Secure
- [KA\-01784](/bulletins/11008161.md), 2024-10-01, Other: UNKNOWN OR OTHER; POWER TRAIN. McLaren P1 \& Speedtail HDA Shaft Seal Leaks
- [KA\-01043 V2](/bulletins/10254383.md), 2024-05-07, Service bulletin: POWER TRAIN. Transmission Clutch Breather Oil Leak
- [KA\-01267 V2](/bulletins/10207574.md), 2022-02-04, Service bulletin: ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Tyre Pressure Monitor System \(TPMS\) Inoperative
- [KA\-01265 V2](/bulletins/10207573.md), 2022-02-04, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES, AIR. Recurring Airbrake Warning Message On Driver’s Display

JSON: [/v1/bulletins/10191703](/v1/bulletins/10191703)

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